I am getting fairly good results with a light box, but because of complicating factors, not as good as I would like. I am...

A reader asks: I am getting fairly good results with a light box, but because of complicating factors, not as good...

Is it safe to use a light box if I am on intravenous antibiotic therapy with doxycycline for Lyme Disease? I have been instructed...

A reader asks:  Is it safe to use a light box if I am on intravenous antibiotic therapy with doxycycline for...

If I buy a small light box with less lux output, is it simple math to adjust my sessions — for example, half the...

A reader asks:  If I buy a small light box with less lux output, is it simple math to adjust my...

What does spectrum mean when talking about light therapy? Is “sunlight” a type of spectrum for the lamp or just like sunlight outdoors. Does...

A reader asks: What does spectrum mean when talking about light therapy? Is "sunlight" a type of spectrum for the lamp...

I take Neurontin for chemical sensitivity. Do I need to adjust my light therapy use?

A reader asks: I take Neurontin for chemical sensitivity. Do I need to adjust my light therapy use?Answer: Neurontin (gabapentin) is an...

How does one choose whether to use light therapy, negative air ionization or dawn simulation for SAD? If one version of light therapy does...

A reader asks:  How does one choose whether to use light therapy, negative air ionization or dawn simulation for SAD? If...

 My daughter has been diagnosed with SAD and has purchased a light box which is helping her with waking and sleeping. She is 22...

A reader asks:  My daughter has been diagnosed with SAD and has purchased a light box which is helping her with...

My ideal timing for light therapy, according to your Automated Morningness-Eveningness Questionnaire, is 6:45 a.m. Now, in my country, daylight starts sooner than that...

A reader asks: My ideal timing for light therapy, according to your Automated Morningness-Eveningness Questionnaire, is 6:45 a.m. Now, in my...

What happens if you do light therapy too early? I have one day a week when I have to leave for work before my...

A reader asks: What happens if you do light therapy too early? I have one day a week when I have...

My husband and I practice natural family planning using the sympto-thermal method. Charting my waking temperature at the same time each day is important...

A reader asks:  My husband and I practice natural family planning using the sympto-thermal method. Charting my waking temperature at the...

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